Find the remaining trigonometric functions of 0 if 4 Cos 0 = and 0 terminates in QI 5 sin 0 = Preview COS 0 = Preview tan 0 = Preview cot 0 = Preview sec @ = Preview Csc 0 = Preview
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Recall that $\sin^2\theta + \cos^2\theta = 1$. Since $\cos\theta = \frac{5}{4}$, we have: $\sin^2\theta + \left(\frac{5}{4}\right)^2 = 1$ $\sin^2\theta + \frac{25}{16} = 1$ $\sin^2\theta = 1 - \frac{25}{16}$ $\sin^2\theta = \frac{16}{16} - Show more…
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